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Archived

Avalanche Forecast

Feb 20th, 2012–Feb 21st, 2012
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Glacier.

Avalanche Problems

Wind Slabs

30-50cm of wind affected snow preserves two touchy surface hoar layers. These layers sit on a crust on solar aspects. Slab avalanches in wind affected terrain and sluffing where this snow is protected can be expected today.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 3

Storm Slabs

Thin wind slabs formed by SW winds are now buried by up to 45cm and will be harder to identify. Skiers have triggered windslabs in steep alpine terrain. These windslabs can be high consequence if over a cliff or terrain trap.

Aspects: North, North East, East, South East, South, South West.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3